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Add build_info metrics to internal metrics #987

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merged 4 commits into from
Jul 3, 2024
Merged

Add build_info metrics to internal metrics #987

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3658729
Add build_info metrics to internal metrics
marctc Jul 3, 2024
faae04b
refactor
marctc Jul 3, 2024
2a1de48
Update docs
marctc Jul 3, 2024
9d8108c
Merge branch 'main' into build_info_internal
marctc Jul 3, 2024
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1 change: 1 addition & 0 deletions docs/sources/metrics.md
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Original file line number Diff line number Diff line change
Expand Up @@ -111,3 +111,4 @@ Beyla can be [configured to report internal metrics]({{< relref "./configure/opt
| `beyla_otel_trace_export_errors_total` | CounterVec | Error count on each failed OTEL trace export, by error type |
| `beyla_prometheus_http_requests_total` | CounterVec | Number of requests towards the Prometheus Scrape endpoint, faceted by HTTP port and path |
| `beyla_instrumented_processes` | GaugeVec | Instrumented processes by Beyla, with process name |
| `beyla_build_info` | GaugeVec | Version information of the Beyla binary, including the build time and commit hash |
19 changes: 18 additions & 1 deletion pkg/internal/imetrics/iprom.go
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Expand Up @@ -2,10 +2,12 @@ package imetrics

import (
"context"
"runtime"
"time"

"github.com/prometheus/client_golang/prometheus"

"github.com/grafana/beyla/pkg/buildinfo"
"github.com/grafana/beyla/pkg/internal/connector"
)

Expand All @@ -29,6 +31,7 @@ type PrometheusReporter struct {
otelTraceExportErrs *prometheus.CounterVec
prometheusRequests *prometheus.CounterVec
instrumentedProcesses *prometheus.GaugeVec
beylaInfo prometheus.Gauge
}

func NewPrometheusReporter(cfg *PrometheusConfig, manager *connector.PrometheusManager) *PrometheusReporter {
Expand Down Expand Up @@ -66,6 +69,18 @@ func NewPrometheusReporter(cfg *PrometheusConfig, manager *connector.PrometheusM
Name: "beyla_instrumented_processes",
Help: "Instrumented processes by Beyla",
}, []string{"process_name"}),
beylaInfo: prometheus.NewGauge(prometheus.GaugeOpts{
Name: "beyla_build_info",
Help: "A metric with a constant '1' value labeled by version, revision, branch, " +
"goversion from which Beyla was built, the goos and goarch for the build.",
ConstLabels: map[string]string{
"goarch": runtime.GOARCH,
"goos": runtime.GOOS,
"goversion": runtime.Version(),
"version": buildinfo.Version,
"revision": buildinfo.Revision,
},
}),
}
manager.Register(cfg.Port, cfg.Path,
pr.tracerFlushes,
Expand All @@ -74,13 +89,15 @@ func NewPrometheusReporter(cfg *PrometheusConfig, manager *connector.PrometheusM
pr.otelTraceExports,
pr.otelTraceExportErrs,
pr.prometheusRequests,
pr.instrumentedProcesses)
pr.instrumentedProcesses,
pr.beylaInfo)

return pr
}

func (p *PrometheusReporter) Start(ctx context.Context) {
p.connector.StartHTTP(ctx)
p.beylaInfo.Set(1)
}

func (p *PrometheusReporter) TracerFlush(len int) {
Expand Down
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